Koho Precision Bar and Metals Co., Ltd.
Most recent update: 2025-04-01
PR message
We stock and sell precision polished steel bars, mainly called "polished steel bars", as a "convenience store for polished steel bars".
With the cooperation of Japanese manufacturers of polished steel bars, we are developing a "polished steel bar convenience store" in Thailand as well as in Japan, with the motto of delivering "what you need, when you need it, and in the amount you need. With the cooperation of Japanese manufacturers of polished steel bars, we will develop a "polished steel bar convenience store" in Thailand as we have in Japan. All stock is of Japanese quality and traceable, and mill sheets can be attached. In order to provide the best service as a convenience store, we offer small lots of one fixed length bar and one cut bar with quick delivery.
The steel grades in stock are SS400, S45C, SCM415, SCM435, and we can order from Japan if necessary. We also have a wide variety of sizes and configurations that are easy to use. In addition, we also focus on the sales of face-machined plates and offer a wide variety of materials such as structural steel, special steel, aluminum, and stainless steel. We are also working on receiving orders for processed products using newly developed cold rolled steel bars and plate materials. We can also provide parts rather than materials. "Please contact us at "KOHO PRECISION BAR AND METALS CO. If you have any questions about metals, please contact us.
Steel types: Ordinary steel, S45C, SCM415, SCM435, SK4F-G, plated shaft (KHCP), S45CG, S45CHT
We can also handle other materials (aluminum, stainless steel, etc.) in addition to polished steel bars.
Shape: round, hexagonal, flat, square
Traceable inventory
700 items, ingredients list attached!
Are you looking for "cost benefits" in materials?
This is not just about the cheapness of material costs, but about achieving comprehensively through time and quality.
KOHO Response: Priority on Speed for Quick Response
We are among the fastest in the polished round steel industry. This is made possible by holding a large inventory. The delivery time is based on delivery by the next day, and in some situations, we can deliver on the same day.
For pickups, we provide a truly "JUST IN TIME" service. We support orders starting from one standard length product or one cut product. We also respond quickly to quotation requests. In addition, we cater to needs other than polished round steel.
KOHO Quality: Products Based on Trust
We deliver Japanese quality from our inventory.
You will be satisfied with the dimensional tolerances, surface conditions, and length tolerances of cut products.
We strictly manage traceability, allowing us to trace the history of all polished products from material to shipment.
This applies to all products, including cut and sold products that have already been shipped.
We can provide a mill sheet (material certification).
KOHO Service: Providing Materials to Create Reliable Products
Small lots and small items of cut products are bagged to prevent loss and contamination.
We remove cutting dust that tends to adhere to the cut products and also remove large burrs.
As the demand for cutting precision is increasing, we are transitioning from traditional band saw cutting machines to more precise carbide circular saw cutting machines, striving to reduce the amount of work required for our customers' processing.
We can provide various materials besides polished round steel, including stainless steel, aluminum, and brass products. We also handle custom plates (surface ground plates).
As we support a wide variety of materials, please feel free to inquire.
Inventory & Product Information
We handle over 700 types of Cold drawn bars
Steel types: SS400*, S45C, SCM415, SCM435, SK4F-G, Free Cutting, KHCP (plated shaft), S45CHT
Shapes: Round bars, hexagonal bars, flat bars, square bars
Our SS400 polished steel bars are derived from materials such as SGD3, AISI1018, SWRM8-10, SGD1, SS400, etc., and do not correspond to the JIS standard SS400.
The tensile strength is equivalent to SGD400-D (however, there is no actual value).
Orderable from stock in Japan (planning to expand the stock variety)
KOHO Response: Priority on Speed for Rapid Response
KOHO's response time is one of the fastest in the industry, made possible by our extensive inventory. The basic delivery time is the next day, or the same day depending on the situation.
For pickups, we deliver the product "just in time." Orders can start from one standard length piece or one cut piece. We respond to quotations as quickly as possible. We can also accommodate products other than cold drawn bars
KOHO Quality: Products Based on Trust
By importing materials from Japanese manufacturers and keeping them in stock, we deliver the highest Japanese quality.
You will be satisfied with our dimensional tolerances, surface conditions, and the length tolerances of cut products.
For stocked items, it is possible to trace the history of all polished products from material to shipment.
Of course, this includes cut-off products that have already been shipped.
We can provide a mill sheet (component report).
KOHO Service: Providing Materials to Create Reliable Products
Small lots and small items of cut products are packed in bags to prevent loss and contamination.
We remove chips that tend to adhere to the cut products themselves and also remove large burrs.
Due to the increasing demand for cutting precision, we are transitioning from traditional band saw cutting machines to more precise carbide circular saw cutting machines, striving to minimize our customers' processing time.
We can provide various materials besides polished steel bars, including stainless steel, aluminum, and copper products, among others.
Polished steel bar plated shaft is made from high-quality S45C steel, ranging in size from φ6 to φ100 with a dimensional tolerance of f8. This flexibility allows it to meet the demands of various machinery. There are three types: KHCP-R (basic type), KHCP-H (unhardened steel), and KHCP-I (high-frequency hardened type), which can be selected based on the application.
Features
The use of hard chrome in the KHCP series offers excellent durability and corrosion resistance. Specifically, the KHCP-I, which undergoes high-frequency hardening, has superior wear resistance, making it suitable for applications requiring high wear resistance. This feature allows for long-term use with minimal performance degradation, reducing maintenance costs. Additionally, high dimensional precision makes assembly easy, adding to its benefits.
Specifications
・ Material: S45C
・ Size range: φ6~φ100
・ Dimensional tolerance: f8
Types:
KHCP-R: Standard type
KHCP-H: Unhardened steel
KHCP-I: High-frequency hardened type
Each type is designed to enhance the durability of machinery, maintaining performance in harsh environments. Moreover, customization according to specific requirements is available, providing products that meet precise specifications.
In modern manufacturing industries, the durability of materials and precision in processing are key to the success of a project. Our surface cutting service supports a variety of materials including construction steel, tool steel, mold steel, aluminum, stainless steel, and castings, providing high-precision milling and polishing services.
Features
Supports multiple materials: Our technology can be applied to a wide range of materials, meeting the requirements of all types of projects.
High precision processing: With the latest processing technology, we can achieve very high precision, supporting the production of detail-oriented products.
Increased durability: Processed parts will have increased durability, allowing for longer service life.
Specifications
Materials that can be processed: Construction steel, tool steel, mold steel, aluminum, ・ stainless steel, castings
・ Processing techniques: Milling, polishing
・ Applications: Industrial machinery parts, automotive parts, mold manufacturing, and more
Cold drawn round bars are available in a variety of steel types, including SS400, S45C, S45CF, SCM415H, SCM435H, SK4F-G, SUS304, SUS303, SUS430F, S45CHT, S45C-G, and KHCP (Hard Chrome Plated Shaft). They range in size from φ3 to φ100, with a dimensional tolerance of h9, making them suitable for the production of high-precision products and machinery components. Our polished SS400 steel, which is produced through a drawing process different from the JIS standard for SS400, has strength equivalent to SGD400-D, but does not display tensile testing values.
Features
The standout features of this product range are the variety of steel types and size range, catering to diverse industrial applications. It comes with high precision in dimensional tolerance, durability, corrosion resistance, and suitable mechanical properties for applications requiring specific characteristics. Additionally, the polished surface facilitates easier further processing and enhances the aesthetic appeal of the product.
Specifications
・ Steel types: SS400*, S45C, S45CF, SCM415H, SCM435H, SK4F-G, SUS304, SUS303, SUS430F, S45CHT, S45C-G, KHCP
・ Size range: φ3~φ100
・ Dimensional tolerance: h9
*The SS400 polished steel is equivalent to SGD400-D (does not conform to the JIS standard of SS400).
Cold drawn hexagonal bars are available in four types of steel: SS400, S45C, SCM435, S45CF, and range in size from H6 to H115. The dimensional tolerance is h12, making them suitable for applications that require high precision in size. Specifically, our polished SS400 steel is produced from a drawing process involving various materials such as SGD3, AISI1018, SWRM8~10, SGD1, and possesses strength equivalent to SGD400-D. However, please note that test values are not provided.
Features
The main features of this product are high dimensional accuracy and strength. With a dimensional tolerance of h12, this product is suitable for assemblies requiring high precision. The polished surface improves further processing capabilities and enhances the aesthetic appeal of the product. The availability of various types of steel allows for the selection of the most suitable material based on the application.
Specifications
・ Steel types: SS400*, S45C, SCM435, S45CF
・ Size range: H6~H115
・ Dimensional tolerance: h12
*The SS400 polished steel is equivalent to SGD400-D (does not conform to the JIS standard of SS400)
Cold drawn flat bars made from SS400 and S45C steel, range in size from F3×9 to F50×300 with a dimensional tolerance of h13. This specification is ideal for industrial products and construction materials that require high precision. Our polished SS400 steel, in particular, is produced through a drawing process of various materials such as SGD3, AISI1018, SWRM8~10, SGD1, and possesses strength equivalent to SGD400-D. However, please note that it does not conform to the JIS standard for SS400.
Features
The main characteristics of these flat bars are their excellent dimensional accuracy and smooth surface. The strict h13 dimensional tolerance ensures precision in the assembly of mechanical components and structures. Additionally, the polished surface facilitates easier surface preparation for painting or coating, enhancing work efficiency.
Specifications
・ Steel type: SS400*, S45C
・ Size range: F3×9～F50×300
・ Dimensional tolerance: h13
*The SS400 polished steel is equivalent to SGD400-D (does not conform to the JIS standard of SS400).
Cold drown Square Bars are made using SS400 and S45C steel grades, and are available in a wide range of sizes from S4 to S100. The dimensional tolerance is set to h11, enabling them to meet the high precision required for various industrial applications. It is important to note that our SS400 polished steel bars, although equivalent to SGD400-D in tensile strength, are made by drawing processing materials such as SGD3, AISI1018, SWRM8~10, SGD1, etc., and do not match the JIS standard SS400.
Features
The main features of this product are its high dimensional accuracy and beautiful surface finish. The precision that clears the h11 dimensional tolerance contributes to minimizing errors during machining and improves efficiency in the assembly process. Moreover, the smooth surface provided by the polishing process not only enhances the aesthetic appeal of the product but also offers an excellent foundation for pre-treatment processes like painting or coating.
Specifications
・ Steel grades: SS400*, S45C
・ Size range: S4~S100
・ Dimensional tolerance: h11
*The SS400 polished steel bars are equivalent to SGD400-D (do not match the JIS standard SS400)
| Company name | Koho Precision Bar and Metals Co., Ltd. | Website URL | http://koho-pbm.co.th/en/ |
|---|---|---|---|
| Street address |
A.Bangboo Samut Prakan Kingdom of Thailand
[See map] |
Person in charge | choomsang@koho-pbm.co.th |
| Telephone number | +66-2-103-6426 | Fax number | +66-2-103-6427 |
| Capital | 10,000,000 THB | Employees | 9 |
| Annual sales | Unregister | EMIDAS Member Number | 93671 |
| Type of manufacturing | Jigs and tools / Machine tools / Industrial machinery | ||
| Main 3 products |
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